AKT2G-AT-425-000

Four-channel analog output terminals, -10..+10 V, 12 bit

The AKT2G-AT-425 Analog Output Terminal generates signals in the range from -10 V to +10 V. The voltage is supplied to the process level with a resolution of 12 bits, and is electrically isolated. The output channels of an EtherCATEtherCAT is an open, high-performance Ethernet-based fieldbus system. The development goal of EtherCAT was to apply Ethernet to automation applications which require short data update times (also called cycle times) with low communication jitter (for synchronization purposes) and low hardware costs Terminal have a common ground potential. The output stages are powered by the 24 V supply. The signal state of the EtherCAT Terminals is indicated by light emitting diodes. The AT-425 supports distributed clocks, i.e. the input data can be monitored synchronously with other data that are also linked to distributed clock terminals. The accuracy across the system is < 100 ns.

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LEDs
Object Description and Parameterization
Technical Data

LEDs

LED	Color	Meaning
RUN	green	This LED indicates the terminal's operating state:
		off	State of the EtherCAT State Machine: INIT = initialization of the terminal, state of the EtherCAT State Machine: BOOTSTRAP = function for firmware updates of the terminal
		flashing	State of the EtherCAT State Machine: PREOP = function for mailbox communication and different standard-settings set
		single flash	State of the EtherCAT State Machine: SAFEOP = verification of the Sync Manager channels and the distributed clocks. Outputs remain in safe state
		on	State of the EtherCAT State Machine: OP = normal operating state; mailbox and process data communication is possible

If several RUN LEDs are present, all of them have the same function.

Object Description and Parameterization

Restore objects

Index 1011 Restore default parameters
Index (hex)	Name	Meaning	Data type	Flags	Default
1011:0	Restore default parameters	Restore default parameters	UINT8	RO	0x01 (1_dec)
1011:01	SubIndex 001	If this object is set to “0x64616F6C” in the set value dialog, all backup objects are reset to their delivery state.	UINT32	RW	0x00000000 (0_dec)

Configuration data

Index 8pp0 AO settings Ch.1-8
Index (hex)	Name	Meaning	Data type	Flags	Default
8pp0:0	AO settings Ch.1-8	Max. Subindex	UINT8	RO	0x16 (22_dec)
8pp0:01	Enable user scale	User scale is active.	BOOLEAN	RW	0x00 (0_dec)
8pp0:02	Presentation	Signed presentation The measured value is presented in two’s complement format. Maximum representation range for 16 bits = -32768_dec ... +32767_dec Unsigned presentation Maximum presentation range for 16 bit : 0 .. +65535_dec Absolute value with MSB"Most significant bit" Sometimes abbreviated as MSB, the most significant bit is the bit position in a binary number having the greatest value as sign The measured value is output in magnitude-sign format. Maximum representation range for 16 bits = -32768_dec ... +32767_dec Absolute value Negative numbers are also output as positive numbers.	BIT3	RW	0x00 (0_dec)
8pp0:05	Watchdog	0: Default watchdog value The default value (8pp0:13) is active. Watchdog ramp The ramp (8pp0:14) for moving to the default value is active. Last output value In the event of a watchdog drop the last process data is issued.	BIT2	RW	0x00 (0_dec)
8pp0:07	Enable user calibration	Enable user calibration	BOOLEAN	RW	0x00 (0_dec)
8pp0:08	Enable vendor calibration	Enable vendor calibration	BOOLEAN	RW	0x01 (1_dec)
8pp0:11	Offset	User scaling offset	INT16	RW	0x0000 (0_dec)
8pp0:12	Gain	User scaling gain. The gain is represented in fixed-point format, with the factor 2-16. The value 1 corresponds to 65535 (0x00010000).	INT32	RW	0x00010000 (65536_dec)
8pp0:13	Default output	default output value	INT16	RW	0x0000 (0_dec)
8pp0:14	Default output ramp	Ramp for ramping down to the default value Value in digits/ms.	UINT16	RW	0xFFFF (65535_dec)
8pp0:15	User calibration offset	User calibration offset	INT16	RW	0x0000 (0_dec)
8pp0:16	User calibration gain	User calibration gain	UINT16	RW	0xFFFF (65535_dec)

Index 8ppE AO internal data Ch.1-8
Index (hex)	Name	Meaning	Data type	Flags	Default
8ppE:0	AO internal data Ch.1-8	Max. Subindex	UINT8	RO	0x01 (1_dec)
8ppE:01	DAC raw value	DAC raw value	UINT16	RO	0x0000 (0_dec)

Index 8ppF AO vendor data Ch.1-8
Index (hex)	Name	Meaning	Data type	Flags	Default
8ppF:0	AO vendor data Ch.1-8	Max. Subindex	UINT8	RO	0x02 (2_dec)
8ppF:01	Calibration offset	Vendor calibration offset	INT16	RW	0x0000 (0_dec)
8ppF:02	Calibration gain	Vendor calibration gain	UINT16	RW	0x1EFA (7930_dec)

Output Data

Index 7pp0 AO outputs Ch.1-8
Index (hex)	Name	Meaning	Data type	Flags	Default
7pp0:0	AO outputs Ch.1-8	Max. Subindex	UINT8	RO	0x01 (1_dec)
7pp0:01	Analog output	Analog output data	INT16	RO	0x0000 (0_dec)

Technical Data

Technical Data	AKT2G-AT-425-000
Number of outputs	4
Power supply	24 V DC via the power contacts
Signal voltage	-10 ..+10 V
Load	> 5 kΩ (short-circuit-proof)
Measuring error	< ± 0.1% (at 0 °C ... +55 °C, relative to the full scale value) < ± 0.2% (when the extended temperature range is used)
Resolution	12 bit
Conversion time	~ 250 µs
Power supply for electronics	via the E-bus
Distributed Clocks	yes
Current consumption via Ebus	typ. 140 mA
Electrical isolation	500 V (E-bus/field voltage)
Bit width in process image	4 x 16-bit AO output
Configuration	via TwinCAT System Manager
Weight	approx. 60 g
Permissible ambient temperature range during operation	-25 °C ... +60 °C (extended temperature range)
Permissible ambient temperature range during storage	-40 °C ... +85 °C
Permissible relative humidity	95%, no condensation
Dimensions (W x H x D)	approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm)
Mounting	on 35 mm mounting rail conforms to EN 60715
Vibration/shock resistance	conforms to EN 60068-2-6 / EN 60068-2-27, see also installation instructions for enhanced mechanical load capacity
EMC immunity/emission	conforms to EN 61000-6-2 / EN 61000-6-4
Protection class	IP20
Installation position	variable
Approval	CE, ATEX, cULus